"It ends in the same Chuck way that we've ended any season or half season that later became a full season," he told TV Line. "It's open.

"You're going to see the whole team collaborating and working together to make things right and have some closure about certain things that are really big, but also leave the potential for it to be continued later."

Levi's co-star Yvonne Strahovski also suggested that the episode will work whatever happens, saying: "It's a good ending, but it also serves as a good beginning if we do get a fifth [season]. I feel like every [Chuck finale] has had to be that because we never know, so the writers always plan for both."